Plasma display screen barrier slurry and preparation method thereof

A plasma and barrier technology, which is applied in the field of ion display barrier slurry and its preparation, can solve the problems of high requirements for barrier coating and no dents, so as to improve leveling performance and thixotropic performance, reduce dents, and improve The effect of dispersion performance

Inactive Publication Date: 2011-05-25
SICHUAN COC DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that the barrier coating has high requirements, and the barrier slurry needs to have high leveli

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example one:

Example Embodiment

[0032] Example 1: First, 3% polymer ethyl cellulose, 95% organic solvent terpineol, 1.9% film-forming aid dibutyl phthalate and 0.1% gas phase SiO 2 After the powder is evenly mixed, put it into a stirring device, heat in a water bath at 70°C-150°C, stir at 100-200rpm for 10-15 hours to obtain an organic carrier; then add 35% of B 2 O 3 , 20% BaO, 10% P 2 O 5 , 10% ZnO, 10% Al 2 O 3 Mix well with 15% CuO to obtain glass powder; finally mix 70% glass powder with 30% organic carrier according to mass percentage, stir at 50-80rpm for 3-6 hours, adjust to a viscosity of 15Pa.s The solid content is 55%, and it can be ground and dispersed by a three-roll mill.

Example Embodiment

[0033] Example 2: First, 3% polymer ethyl cellulose, 93% organic solvent terpineol and diethylene glycol butyl ether acetate, 3.5% film-forming aid dibutyl phthalate Ester and 0.5% vapor phase SiO 2 After the powder is evenly mixed, put it into a stirring device, heat in a water bath at 70°C-150°C, and stir at 100-200rpm for 10-15 hours to obtain an organic carrier; then 34% of B 2 O 3 , 21% BaO, 10% P 2 O 5 , 10% ZnO, 10% Al 2 O 3 Mix well with 15% CuO to obtain glass powder; finally mix 70% glass powder with 30% organic carrier according to mass percentage, stir at 50-80rpm for 3-6 hours, adjust to a viscosity of 10Pa.s The solid content is 50%, and it can be ground and dispersed by a three-roll mill.

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PUM

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Abstract

The invention relates to barrier slurry, in particular to plasma display screen barrier slurry and a preparation method thereof. The plasma display screen barrier slurry comprises 60 to 75 percent of glass powder and 25 to 40 percent of organic carrier, wherein the glass powder comprises 25 to 35 percent of diboron trioxide (B2O3), 20 to 30 percent of barium oxide (BaO), 5 to 10 percent of phosphorus pentoxide (P2O5), 0 to 20 percent of zinc oxide (ZnO), 0 to 20 percent of aluminum oxide (AL2O3) and 0 to 15 percent of copper oxide (CuO), ceric oxide (CeO2), lithium oxide (Li2O) or sodium oxide; and the organic carrier comprises 3.0 to 15 percent of polymer, 76 to 95 percent of organic solvent, 1.5 to 16 percent of film-forming auxiliary agent and 0.1 to 0.9 percent of gas-phase method silicon dioxide (SiO2) powder. By the plasma display screen barrier slurry and the preparation method thereof, dispersing property of the glass power is improved; levelling property and thixotropic property of the barrier slurry are improved; the defects of sinking, bubbling and the like of the barrier slurry subjected to coating and sintering are overcome; the manufacturing process is simple; the finished product ratio is high; and mass production is performed easily.

Description

technical field [0001] The invention relates to a slurry for barrier ribs, in particular to a slurry for barrier ribs of a plasma display screen and a preparation method thereof. Background technique [0002] Plasma display screen is a flat panel display device that uses gas discharge to emit light independently, and is composed of a large number of plasma discharge cells. Each discharge cell is composed of a bus electrode, a dielectric protection layer, a barrier structure, phosphor powder, and an inert gas. When high voltage is applied to the bus electrode covered under the dielectric protection layer, the inert gas sealed in the barrier structure discharges to generate ultraviolet light, thereby exciting the red, green and blue tricolor phosphor layer on the inner wall of the barrier structure to emit visible light. [0003] There are three main functions of the barrier in the plasma display screen: one is to ensure the discharge gap between the front and rear substrates...

Claims

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Application Information

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IPC IPC(8): H01J17/16H01J9/24C03C15/00
Inventor 彭钦华郑炜王鹏年
Owner SICHUAN COC DISPLAY DEVICES
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